Sintered diamond grinding disc structure

By separating the sintered diamond grinding disc structure, the base and the substrate ring are separated and connected by pins, which solves the problems of high production difficulty and high cost caused by the integrated structure of the grinding disc, and realizes the manufacturing of grinding discs with high bonding strength and low cost.

CN224509382UActive Publication Date: 2026-07-17HUIZHOU JIM COMPOSITE MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU JIM COMPOSITE MATERIALS CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing integrated structure of the grinding disc leads to high production difficulty and cost, unstable bonding strength, and high-temperature welding affects the performance of the sintered matrix.

Method used

The sintered diamond grinding disc structure adopts a separate design, with the base and substrate ring separated and connected by pins and coated with room temperature adhesive. After the blank is sintered and formed, it is assembled with the substrate to avoid high-temperature welding.

Benefits of technology

It improves the bonding strength between the grinding wheel substrate and the blank, reduces production difficulty and cost, enhances the chip removal and heat dissipation capabilities of the finished product, and improves the performance of the grinding disc.

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Abstract

The utility model relates to the technical field of grinding disc, especially a sintered diamond grinding disc structure, including base, the side end face of base is equipped with the limit groove, the inside fixed placement of limit groove has the base material ring, the outside one end of base material ring integrally sintered has a plurality of groups of billets, this sintered diamond grinding disc structure has solved the shortcoming that the grinding disc integral structure leads to the greater production difficulty in the prior art.
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Claims

1. A sintered diamond grinding disc structure, comprising a base (1), characterized in that: A limiting groove (2) is provided on one side end face of the base (1), and a substrate ring (6) is fixedly placed inside the limiting groove (2). Multiple sets of blanks (9) are integrally sintered at one outer end of the substrate ring (6).

2. The sintered diamond grinding disc structure according to claim 1, characterized in that: The outer wall of the base (1) is provided with a first pin hole (3) that extends through the limiting groove (2), and the outer wall of the base ring (6) is provided with a second pin hole (8). A pin (11) is locked between the first pin hole (3) and the second pin hole (8).

3. The sintered diamond grinding disc structure according to claim 2, wherein: The surface of the pin (11) is coated with a room temperature adhesive, which is used to fill the gap between the pin (11) and the first pin hole (3) and the second pin hole (8).

4. The sintered diamond grinding disc structure according to claim 1, wherein: The outer end of the substrate ring (6) is integrally formed with a protrusion (7), and the blank (9) is sintered around the protrusion (7).

5. The sintered diamond grinding disc structure according to claim 4, wherein: The lower end of the blank (9) is sintered to form a coupling groove (10), which is in contact with the protrusion (7).

6. The sintered diamond grinding disc structure according to claim 1, wherein: One end of the base (1) is provided with a connection hole (4), which is used to connect an existing drive device.

7. The sintered diamond grinding disc structure according to claim 1, wherein: The outer wall of the base (1) has multiple sets of hollow sections (5) through which waste chips are discharged.